Home broadband is also crazy
Cool dragon
2004-3-26
Background: Ask you the heroes, about ADSL. http://bbs.it168.com/dispbbs.asp?boardid=60&id=40391
1. 8 households near my home intend to share an ADSL, requiring no servers, can be internet access separately or simultaneously.
2. My Guangzhou Telecom ADSL is 2M 200 yuan month, 512K 150 yuan package month. Is it good?
(1) Can be online to play games (2) Video chat (3) network speed is roughly related to Internet cafes (4) It is best to see network movies.
3. What equipment should be purchased. Stable performance, low price, convenient installation.
4. To achieve the above requirements, what should I install?
Briefly analyze
First, I briefly answer questions from netizens.
One. For multi-family families sharing ADSL Internet access, of course, hardware gateway devices will be used instead of the server. Because the server can also be competent, in terms of stability, efficiency, power consumption than small dedicated gateway devices. The small power consumption gateway device is fully boot all day, stabilized online for different families online.
two. "2M 200 yuan month" should be the best choice, which is not only very low in the price, but it is less than the households, but also the four requirements that are basically competent. For the last "Viewable Network Movie", you have to have a 512K universal download speed to see the movie of the DVD picture, but this to 2M ADSL is obviously not, only 210K is about 210K, the stable universal download speed, not reached 512K, so the movie provided by the general website can only be barely watch (small windows) unless the telecommunications company can provide movie services, directly from the computer room to the user's computer, no intermediate any other network, this should be The download speed of about 1m is reached, and the movie can be viewed at very high quality. For the Internet, play games, and video chat or more is more than enough.
three. As for the equipment to buy, of course, you want to buy a high-performance broadband router (home gateway product), there is a SOHO switch to extend the port number.
four. This issue will be described in this section below.
Equipment purchase guide
Broadband access bandwidth is getting more and more "wide", network applications are getting richer and we should purchase a broadband router that can compete in two or three years, reaching "Internet cafes" in speed and stability. Application requirements. So I should choose a broadband router product quoted at 1000-2000 yuan. Xiaoku believes that the broadband router on the market will have a new round of price cuts, and the low-end configuration of broadband routers will drop to a single user who can accept the price and may soon withdraw from the market. So we should purchase higher configuration products for multi-user applications.
The hardware configuration of the broadband router includes: processor, flash, memory, wide area network interface, and local area network interface. It is a "functionalized computer host". Like the computer, the model and the main frequency of the processor, the size of the memory determines the performance of the broadband router. In particular, the size of the processor determines whether this broadband router can handle the throughput requirements of a large number of packets, whether it is stable high-speed online, which is a standard for broadband routers that are low, medium and high. In the processor of the ARM kernel, ARM7 50MHz belongs to the mid-range. The broadband router with processors of the MIPS kernel is also high-end configuration with the ARM9 series 100MHz, and the broadband router that configures the MIPS kernel is also a high-end configuration. Its cluster is generally more than 200MHz. The memory affects the performance and speed of the broadband router to a certain extent, preferably 8m to 16m. Flash is the basis of the function extension, which stores the operating system and configuration file, 1M ~ 4M is good, because the broadband router will belong to the consumer information product, it is easy to configure, so the big flash is easy to develop the upgrade interface Good software. WAN interfaces and local area network interfaces should support 10M / 100M adaptive Ethernet standards, which can be achieved by general broadband routers. The following is two broadband router products recommended by Xiaoku, which have a high cost-effective feature:
· Net Thai NS-1004 offer: 850 yuan (see Figure 1)
Http://detail.it168.com/bj/files/detail_product.asp?cspace_code=61363&cTyPE_CODE = 0409&cbrand_code=2864
Netthai NS-1004 has a 166MHz ARM9 processor, 2M flash, 16M memory. 1 10 / 100Mbps Wan port, 4 10 / 100Mbps LAN port. The Lan To Wan (NAT) packet is up to 95Mbps or more.
The main functions are: Built-in DHCP / NAT / NAPT / DDNS server function, support VPN. Access controls with Mac and IP segments can limit the access of the website. Internet time can be set, in accordance with network policy management, effectively control frequency wide and traffic, group IP access control functions, and build URL website access control functions. Internal firewall function, and support packet filtering, anti-rejection service, state packet check, can block the malicious packets such as Cookies, Java, Java Script, ActiveX, superior Web management setting screen, through remote operation management mode. Support IP RIP V1 / V2 dynamic routing and static routing and other routing protocols, support standard SNMP V1, 2 network management, free upgrade system software.
· UCOM (Friend Kang) URS-943 offer: 1150 yuan (see Figure 2)
Http://detail.it168.com/bj/files/detail_product.asp?cspace_code=60218&cTyPE_CODE=0409 &CBRBRAND_CODE=0666
URS-943 uses AMRISC9000 CPU 100MHz, 4M Flash and 16M DRAM. 1 10 / 100Mbps Wan port, 4 10 / 100Mbps LAN port.
The main functions include: Support package filtering, MAC address control, allowing some special server access to MAC address verification, and can limit the user's permissions according to the MAC address. Support domain filtering. Time control functions can limit the time of accessing the Internet. Support for VPN technology such as PPTP / L2TP / IPsec and DES / 3DES encryption, 80 VPN channels can be established at the same time. Support for DDNS services, special application services, which automatically feels the application type and opens the port of the port. Support the DMZ host to support DHCP servers. Support 20 virtual servers, allowing a one-to-one mapping of multiple external legal IPs and internal legitimate IP. Support route. Optional high-speed wireless LAN connection, automatic rate selection function (can be equipped) 54m, 22m, 11m, 5m, 2m, 1M automatic rate selection function. Printer sharing (available). WEB-based configuration and remote management, support SNMP network management, support WAN statistics, can monitor the amount of data, automatic statistical inflow flow, and packet loss rate. Support FIRMWARE upgrade. In addition, we also have to buy an 8-port switch to extend the port, plus 4 exchange ports in the router itself, can meet the access of 8 households. There are many products of the 8 switch (SOHO switches), which are all consumer information products, extensive by family and micro companies, and there are so many products that appear because of broadband The popularity, the SOHO switch is considered a vast market, the price ranges from 100 to 300, the price is very low, the technology is very mature, we can rest assured to buy.
We can participate in the following products:
· DLINK DES1008D (see Figure 3) http://detail.it168.com/bj/files/detail_Product.asp?cspace_code=28490&cType_code=0412&cbrand_code=0071&cflag=1
· Cisco-Linksys SD208 (see Figure 4)
Http://detail.it168.com/bj/files/detail_product.asp?cspace_code=58504&cTyPE_CODE=0412 &CBRBRAND_CODE = 0524
· NETGEAR FS608 (see Figure 5)
Http://detail.it168.com/bj/files/detail_product.asp?cspace_code=34639&ctype_code=0412&cbrand_code=1943
)
· TCL S4108S (see Figure 6)
Http://detail.it168.com/bj/files/detail_product.asp?cspace_code=50942&cTyPE_CODE=0412 &CBRBRAND_CODE=0243
· TP-LINK TL-SF1008M (see Figure 7)
Http://detail.it168.com/bj/files/detail_product.asp?cspace_code=24968&cTyPE_CODE=0412 &CBRBRAND_CODE=0252
(Figure 7 inserted)
Program implementation
The implementation of the program is as follows. We intend to purchase a friend Kang URS-943, a TCL S4108S switch to form this small star local area network, the network's topology is as follows: (see Figure 8) (inserted in Figure 8)
Netizens' 8-households may not be a long distance in the same unit or at the same cell. So we choose one of the houses as a "network center", which should be in a relatively large position in order to wiring, the network cable will not be too long. We placed ADSL MODEM, Friend Kang URS-943 broadband routers, TCL S4108S switches in the network center. Telecom Broadband Lines Access ADSL Modem, MODEM Access Broadband Router, Broadband Router Access Switch, Switch Access Host. After the connection, the switch can only provide 7 ports to access the host, so one of the hosts can be connected to the switch of the broadband router. To deploy the game server, media server, the web server can access the broadband router to access users from users or users' access on the Internet.
Small knot: Such network hardware configuration, such bandwidth access, will meet the requirements of netizens to be comparable to Internet cafes, at least universal universal stable download speed is 210kps, according to different network paths, perhaps more High, netizens' basic network requirements are not problematic.
